LEGOLAND Windsor theme park with its millions of LEGO® bricks is ideally suited for families with children between 3 and 12 years of age. LEGOLAND Windsor is the second of now four theme parks of LEGO® and was opened in 1996 in Windsor near the English capital of London. It's divided into seven different, intricately designed and crafted theme areas. On an area of more than 150 acres the amusement park offers a variety of attractions, rides and shows.

I totally agree with Jen!
This is indeed a perfect place to spend a whole day out with your family. Apart from the missing thrill attractions - well, you might consider The Dragon as one - we didn't enjoy the food as much, but other than that, it was just perfect.